While iMessage and Meta's apps dominate modern messaging, there have been many other instant messaging apps that were hugely popular in the past.

These days, we take internet-based chatting for granted. We're spoiled by a massive (and admittedly fragmented) ecosystem of direct messaging (DM) services on our phones and PCs, ranging from WhatsApp ...

Despite the work full-service firms have put into Web-based client services, there's one function that's still missing -- the ability to chat in real time via text-based message screens. The term for ...